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1 National Safety Standards
This CO2 Rain® System includes 25 ft of laser-drilled 1/8 in tubing
no calibration required
growth rates and plant and root development
HM Digital EC/TDS HydroTester Model COM-80 Size:HM Digital Water Resistant Ec/TDS Meter w/ Temperature in C/F Hydrotester (Model COM-80) 1 National Safety StandardsThe COM 80 is an economically priced, reliable EC TDS meter that is ideal for testing applications such as hydroponics, gardening, pools, spas, aquariums, reef tanks, water ionizers, drinking water and more. Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for nutrient testing. Four scales: EC: S, mS; TDS: ppm, ppt. This tester has automatic temperature compensation (ATC) and is water resistant. Measurement range: 09990
US$ 35.00
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US$ 75.00
US$ 162.00
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